OP - having read the whole thread, I think you are very much a feminist, but you have a pre-conceived idea as to what feminist ‘ideology,’ as you term it, is. There is no specific model - what we have in common is that we oppose patriarchy. We believe that women should have equal rights, equal pay and be treated with respect and dignity.
It’s true that for some of us, our views have been shaped by feminists who came before us and whose work we admire, but there are many who have not had anything to do with their writings.
Regarding voting Conservative - being a feminist doesn’t mean following left-wing politics. I consider Jeremy Corbyn to be a misogynist and do not intend to vote Labour whilst he is in charge. I consider the stance of Julia Hartley-Brewer who is a republican and an atheist, by the way, to be very much feminist. She also featured on the list of ‘100 most influential people on the Right.’ A few days ago Nadine Dorries posted that she was going to wear a ‘Woman: adult human female’ sweatshirt (produced by Standing for Women) in support of her friend Julia H-B who refuses to be called a cis-woman. Standing for Women is a feminist group, I’m sure both Julia Hartley-Brewer, Nadine Dorries and a whole host of other Conservative women would call themselves feminists, even though they might not have many other things in common with each other.
I think that your idea of what it is to be a feminist needs updating, to be honest. I’d say you already are a feminist; you just have not accepted it.
I don’t consider Theresa May to be a feminist, though. She, on the other hand, might feel otherwise.