If it won't let me untick all but the essential cookies easily - close tab, move on.
Recently I realised that some "reject all" options still don't reject the "legitimate" bullshit, so I now avoid those sites too (and no, I don't trust that extensions that claim to reject all for me will actually reject all).
I've got better things to do with my time than scrutinise these cookie pop ups and/or go through lengthy lists individually unticking options. Fuck that noise - don't have minimal respect for users? Then I'm definitely not providing you any of my data (the sites that make it the hardest rarely hold information you can't easily find elsewhere)..