The problem is gun advocacy, like many other issues in US politics, have been bundled into bipartisanism, and are now loaded, complex issues.
Most people around me who are pro-2A are staunchly pro-police, staunchly against movements like BLM, for authoritarian type figures, etc. Police are often very pro 2A.
I'm generally pro 2nd amendment. But I am strongly for police reform. Despite being a right, the 2nd amendment should never be a necessity. If it is, we've failed as a nation.