Since I see you post fairly often about this, I'll give it a shot.
Trophies aren't an essential part of video games. They aren't a necessary or (arguably) worthwhile part of video games. To some people they are and to some game developers they are, but not all the time. Since GT5 the Gran Turismo series has been filled with weird design choices much more egregious than tasking people to reach a basically arbitrary amount of wins/poles for a secondary achievement that the vast majority of the playerbase will ever see, much less care about. Who could forget the Formula GT championship in GT5, which you unlocked at level 23 but could only buy the one car eligible for it at level 24?
As someone who plays games with trophies in mind, I worked to get the difficult ones out of the way some time ago. I first started playing the game regularly in mid-2018, the same week it changed from daily races to weekly races. Going by my screenshots which I take for every win I got 34 wins in one week driving the Honda Beat around Yamagiwa. I had a lot of poles too. If your enjoyment of Gran Turismo Sport is genuinely diminished by the thought you might not get the trophies, but you still want to play it, do that. Look at the dailies, look for a race coming up which will be both slow and close, and put time in. My qualifying time for that race was 91st in EMEA. Miles better than any other qualifying time I've ever put in. Because I spent the time, knowing I would be able to easily compete for wins and poles.
Slower races like that generally have the added benefit of fewer A and A+ level drivers entering them. Repeating the same race over and over also improves your racecraft as well as your pace, since you can more quickly and easily put into practice the things you learn when you race the same race almost immediately.
Now, if you still want a reason to play GT Sport, nobody here can give you one. Either do if you want to or don't if you don't. I honestly can't even say I play because I enjoy it, I play it because I've done it regularly for nearly two years and am just used to it. But, look at my KP stats in my sig. You'll see a much higher time played than you, and you'll see a DR that's gone through lots of ups and downs. In the early days I didn't really know how best to approach the game. I was worried about getting wins and poles, and when the opportunity came up to get them, as I detailed earlier, I did. I gamed the system for a few of them.
Outside of that, there were things I wanted to do. I wanted to be an A level driver. I thought I was doomed to be DR B forever, but I made it. I went down to B, I went back up to A, then I stayed there. Then we got that glorious week of Gr.3 at St. Croix and because I was so used to the GT-R from the Manufacturer Series, I won a bunch of races at DR A. My DR went up to 40k+. I went into FIA races, and I was competitive. After putting in a
lot of time (but still comparatively little compared to the aliens, and not really what I would consider a lot personally), I improved. I'm still terrible, and since I switched to a wheel last December, I'm learning all over again. But I still know I'm better at racing games now than I was when I started playing this.
I've been in
1197 races in Sport Mode and I have 124 wins. 113 daily, 11 FIA. I've had 103 poles, 96 daily, 7 FIA. I've had wins at Suzuka, Fuji, Nordschleife (win #91, no less), Streets of Willow Springs, Interlagos, Brands Hatch Indy, Nurb GP, Tokyo Central Outer, Northern Isle, Blue Moon Bay, BB Raceway, Tokyo East Outer, Tokyo South Outer, Dragon Trail Seaside, Yamagiwa, Miyabi, Suzuka East, Tokyo Central Inner, Tokyo East Inner, Monza, Tsukuba, Seaside reverse, Monza with no chicane, Lago Maggiore Centre, St. Croix B, Sardegna C, Dragon Trail Gardens, Autopolis, Le Mans and Sardegna A. I've had wins (presumably) at DR D, C, B and A. There are lots of resources online to become better at this game. This thread and forum is spectacular, with lots of different people of different abilities discussing races. There are youtubers who are both entertaining and informative, who can teach you directly (Tidgney's Driving School) or passively (Super GT's commentary on his races) and, as hard as it can be to apply that consistently, it works. It must do, since it's made me better.
If you can't separate GT Sport from its PSN trophies after this length of time, I don't know that anything will. I don't imagine PD care especially, and it's probably right to be a bit annoyed at that. There's so much about this game that annoys us all, even now. But if you really want to do them you can, either fairly or unfairly, depending on your perspective. If you try to do them legitimately, you might surprise yourself.
It's also worth pointing out that I happened to notice by chance one of the latest achievers of the platinum for GT Sport just the other day:
https://psnprofiles.com/trophy/6806-gran-turismo-sport/1-gran-turismo-platinum-trophy
That's multiple World Tour event participant Lewis Bentley, who by his own admission hasn't taken the game that seriously since he was last at a WT. The GT Sport platinum isn't something that's the sole preserve of the aliens, so if you want it, go for it. It doesn't, and shouldn't, break the game for you.
(this post was written by someone with 130 platinums to their name and ~80 100% PSN games, including Gran Turismo 5 and WipEout HD)
