Immigration puts pressure on housing, which already has a 4M-7M unit shortage. See Canada, which has liberal immigration policy but wildly unaffordable housing. Entitlements can easily be funded by raising taxes progressively. You cannot say you're the wealthiest country in the world, and then say you cannot afford the entitlements. The very wealthy simply want to remain very wealthy.

Taxes will have to go up, there is not enough to cut, and the bond market will not tolerate continued irresponsible financial policy (pushing 10yr+ treasury yields up, edging us towards a debt spiral).