Talking about support, so having services like Gamepass, BC with upgraded performance, and a bunch of exclusives (not necessarily AAA) doesn't count as supporting the platform...? Why, because you say so?
If you want to talk "historical facts" then you should acknowledge that every gen large parts of each console base switch to another console. Once again, PS2 to PS3 and Wii to Wii U or even 360 to One are prime examples of the user base having no loyalty. History and facts back it up.
You say you have 400 PS4 games, which means the huge majority of that is probably physical which also means your "ecosystem" is pretty much just your black plastic PS4 box. And sales show that the majority of PS4 gamers but the systen to play play COD, FIFA and GTA5. What's that ecosystem they're so scared to leave behind lol.
Sorry bro, just doesn't very convincing.