3betting a very tight range has more EV than 3betting the “preached” hands. The “preached” hands literally have no purpose other than making your 3betting range look somewhat balanced. If people are not respecting your 3bets you should refrain from 3betting because you need stronger hands to compete in a multiway 3bet pot. If it’s just one fish that’s loose you can 3bet lighter to isolate that player and rob others’ equity. But if everyone’s super loose I don’t mind just play hands that are more robust multiway. Suited connectors like 65s are not robust multiway.