No, it's only retarded when lefties do it, because the right isn't trying to obstruct your God-given rights, like the left have been doing for a least 120 years in the US.
When you refuse to a service because the creator is a leftist, you have a potential myriad of good reasons for it: they support abortion (the murder of children), CRT (anti-"white" racism), the loss for your self-defense to be legally defendable (allowing criminals to assault you/rob you/etc.)
If you refuse to use a service because the creator is on the right, you have very little reason to do, most of them are simply fabrications and delusions that leftists perpetuate and/or believe, even when there seems to be obvious instances to the contrary.
*In general,* "political tribalism" is one of the most ethically defensible forms of tribalism, aside from religious tribalism, and even then they are defensible for similar reasons; religion and politics are a matter of life and death, a lot of the time in overlapping ways.
And again, the right is generally not trying to obstruct your rights. The left is.
Refusing a leftist's service is nowhere near the same as refusing a "rightist's" service.
National-socialism is still socialism, i.e. a bad idea for any nation. If there's at least one thing in modern politics, it's that the West has a distaste for national-socialism; it would be best if this extended to *all* forms of socialism, but this is very much better to the populace having at least two
forms of socialism pushed onto them.