Neither is Mailchimp. Don't confuse the right to free speech with the right to be heard.
The cake shop isn’t cutting access off to basic business functions that will vastly impact the target.
So the first amendment applies differently depending on the impact of the speech?
I see. And what happens when every fascist tech company and payment processor signs up for a social credit system? Then boots every conservative with a “low” score as determined by fascists like Sleeping Giants. Then what?
We need to stop playing libertarian checkers and fight these fascists attacking us for every inch of battlefield. They deserve no quarter because they fully intend to destroy our American Heritage.