This is Politics, it's not 1D or 2D, it's N-Dimensional (with a very, very large N): it's not just possible but pretty much a Mathematical certainty than in a country were there are only 2 parties they will match perfectly on some dimensions, even whilst not at all matching in others.
Trying to dismiss away that aspect of Reality (which is incoveninent for tribalists) with sloganeering like "bothsiderism" is just parroting propaganda meant for simpletons who see reality as having just one dimension where there is nothing more than 2 sides.
It's pretty evident by their actual policies that strengthenning of police powers and the surveillance state are things in which both sides of the power duopoly in the US agree in the most, and it the face of both of those parties being shit on that domain your "yeah, but " discourse is really just trying to distract away from the most nasty aspects of both of those taking big fat dumps on the face of every American, by talking about subtle details in the shape and consistency of each one's shit.
Now, if you favorite party did start to diverge in that, you would have reason to celebrate, but it ain't hapenning and discourse such as yours makes it even harder that it will ever happen - why would the tribe's leadership change their ways when there's a veritable army of tribalist peons going "yeah, but, bothsiderism" at any criticism of what they do, even those parts which are undeniably shit.