Regulations say pilots have responsibility and authority over who they accept on the plane, one commercial airliner pilot did tell me he does refuse entry to cl

Regulations say pilots have responsibility and authority over who they accept on the plane, one commercial airliner pilot did tell me he does refuse entry to clearly inebriated passengers. For this of course the pilot has to not be too busy, has to take the time to stand at the door for the whole boarding, and has to have a company that will not veto such (legal) decisions to refuse boarding, with associated luggage removal delay etc, to happen... How much has this changed in the past ten years?