This has not been my experience engaging in the political process in the US, both on individual campaigns and when working on specific issues (drug decriminalization and incarceration and gerrymandering, specifically).
Whether people are married to their ideas through money or ideology, you are left with little recourse. History is written by the victor, not the noble.
Think beyond the single issue and realize that making enemies of people has cascading effects that ultimately polarize the nation and close you off to any possibility of modifying your opinions or learning new things.
At least with my nation, the US, while neither side is really for the people one side is so vastly against the interests of the majority in general and the interests of me and mine in particular that I expect there is no reasonable middle ground.
When one group wants people like yourself to lose medical care and die where is the middle position?
Ultimately I expect them to eventually react violently to losing power and have to be put down by force in order to preserve some notion of democracy.
On perhaps your side of the pond it seems that one side wants to strangle the medium for culture and civilization in order to make a few bucks in hopes that a fraction will stick to their hands. These people are surely personally your enemy whether you recognize it or not.
Whether people are married to their ideas through money or ideology, you are left with little recourse. History is written by the victor, not the noble.