A couple of numbers illustrate the matter.

Organized labor spent more than $1.8 billion on political activity and lobbying in the US during the 2020 election cycle, according to a new study published by the National Institute for Labor Relations Research (NILRR). The majority of the money spent by labor, $1.4 billion, came straight from union dues taken from workers who can legally be fired if they refuse to fund union activities[.]

Those two numbers also emphasize the need for even more right-to-work laws, laws that not only allow workers to work for an employer without joining a union whose members also work for that employer, but also allow those non-union workers to decline to pay any form of dues or tribute to that union.