If you really are getting kicked for requesting a slower or experience driven run, then you should file a GM report against the offending player(s). Regardless of their motivations for running these dungeons, it is explicitly against the rules to vote kick a party member for that reason.

That being said, you should also note that you don't lose a huge amount of experience by skipping some monsters (half the opening room of AV, or some corridors of DD). You should consider your experience over time, and there are instances where an expedited run can prove to be more valuable to you while also serving that high-level player's goal of reaching the end quickly.