Almost impossible without backing from some VC like litellm

ridiculous statement. most people dont need long tail.

I might be wrong, but if you go after 200 integrations keeping them on is substantial work for solo founder

real people just need like 20 at most.

if that's the case and doesn't need crazy number of integrations, I agree with you 100%

Yes, the number of meaningful providers might be around 20-30.