the bitcoin incentive model is purely on chain however. some believe, out of libertarian make belief ideology, that this is what makes bitcoin censorship resistant. 

the incentive is profit. miners do and will not care where that profit comes from. if US had 80% of hashrate and the state would pay miners a premium for not including txs, all miners would comply.

this is something people generally ignore under the veil of „bitcoins incentive model“ and even worse, confuse it as what makes bitcoin permissionless.

we have yet to solve this.

ramenbased

bitcoin

Can the “Miners” ban a tx?

Nihsotas

Any miners could construct candidate block with their own intended txs inside that block. Miners can't "ban" certain txs, but they can optionally not include txs into their candidate block.
But most miners are incentive-driven, pay enough fee & your tx will be included in the next block (depends on the fee market atm)