how would you deal with this?

so in a cliff note kinda story

asked to go to meeting with people that have nothing to do with job i do
i say im too busy as im the only person on site
they gut huffy and puffy


srs though, how do you deal with these white collar tradies that dont understand how the job is done and rather waste 60% of their time in meaningless meetings. just lmao at office cels