History shows politicians don't care about those who don't vote - look how the EU citizens living either here or in Europe have been treated these past few years!
Not sure what EU citizens living in Europe has to do with anything. If you are talking about EU citizens living in the UK, they were denied the vote on Brexit because referendum rules are not the same as general election rules, and precisely because MPs cared about what they thought and might vote for. They were not non voters.
I don't need to tell you how long it took to get the matters of slavery, women's right to vote achieved.
How did voting help win the women's vote? Those men who were allowed to vote were not voting in favour of suffrage. Women won the right to vote through a combination of civil disobedience and their huge efforts to keep the country going in WWI.
Slavery was not abolished through voting. It came about through a combination of Parliamentary reform (the 1832 Act to get rid of rotten boroughs), the American Revolution that resulted in Britain losing it's grip on its plantation interests which had been served through slavery, and the industrial revolution that switched economic focus away from the American colonies to the domestic northern industrial cities. Plus civil disobedience and campaigning by slaves and religious groups respectively.
So, once again, explain to me how voting for the parties advocating self ID will bring about the end of this policy being pushed? Bear in mind that people within these parties who have argued against these policies have been hounded out. They don't want to listen to their own, so how will anonymously voting for these parties do anything other than endorse their self ID stance?
And, btw, as this is the feminist board, you really don't need to patronise the women on here about the importance of voting. Many of us will have voted in many elections and campaigned for/endorsed political parties over many years. Do you think we are spoiling ballots in some sort of hissy fit? Or do you think we might have poured over manifestos, listened intently to the leaders for a glimmer of hope and good sense on self ID, lobbied MPs/candidates to look at this issue from the point of view of the concerns of women, and finally concluded that voting for these parties would be total anathema?