I think this is an oversimplification at best. Right-to-repair has huge support amongst e.g. farmers, who are not homogeneously left-leaning by any stretch.
what does that say about the quality of what you have to say?
People mentioned farmers in your sibling comments, are those consumers? I thought they are not.
Wanting more personal freedoms is generally considered a right-wing view. Creating a right to repair is about placing limits on corporations, not actual people. Try telling people that they can only use "original" parts in their guns and suddenly the entire NRA will be on the streets demanding a constitutional amendment in support of right-to-repair. This isn't a left-right political thing. It is a persons v. corporations issue, with government as the representative of the people.
What I'm saying is that by casting right-to-repair as leftist (or rightist) just muddies the waters of what leftism is without providing any guiding context about why people might be for or against the right to repair. In any case, there's very few parts of the governmental-regulation spectrum that are unambiguously left or right.
It's a bad legal concept, but it exists: The DMCA
Clearly, there is a legal concept of 'felony contempt of business model', as I did not coin that phrase myself.