1. Just looka the sales charts. PS3 is very much FPS-centric as much as many would love to deny it. The FPS genre popularity will only grow on PS4 as Xbox fans migrate to the platform. Do you know why games like Uncharted and Killzone made their multiplayer free to play? Uncharted is story focused so for most multiplayer is an after-thought. With Killzone it's just not popular enought o compete with Call of Duty and Battlefield. Having multiplayer behind paywall is Sony's way of making PSN the go-to platform for multiplayer gaming.
2. This has nothing to do with Sony. If a game doesn't sell well enough to support a healthy online community, that's on the developer. Maybe they didn't make the game good enough, maybe people just moved on? All those games you listed have low sales so therefore will have a low playerbase.
3. Deal With It. You can't always get what you want and although I rarely admit it, PSN needs some cash thrown its way. I'll gladly pay to make it a better service.
Funny how you complain about Tekken Tag 2 having a poor online community when they just released a free Tekken game on PSN called "Tekken Revolution". You should check it out. It probalby has a better online community the TTT2.
