Starrykitten, have you ever read Sara Paretsky's VI Warshawski books? If not, you should. I have loved these books for over 25 years and one of the things that makes me love the character is her political stance - she's headstrong, a feminist, a socialist, believes in fighting for the underdog, opposed to injustice and the exploitation of the poor, pro-abortion, anti-religion.
Some novels are written and purposefully feature a political stance. Even if you choose not to make your books all about politics, it's generally hard to keep them out of a novel completely. Politics is an important part of life and how can you realistically write about human beings without touching on this? It's OK for a book to reflect the author's politics, and indeed is rather difficult to write a book that contradicts your own beliefs. If the reader agrees with the politics they will enjoy the books all the more. If they don't, they might find them preachy and annoying and stop reading, but that's OK. You can't please everyone.
Some novels are written and purposefully feature a political stance. Even if you choose not to make your books all about politics, it's generally hard to keep them out of a novel completely. Politics is an important part of life and how can you realistically write about human beings without touching on this? It's OK for a book to reflect the author's politics, and indeed is rather difficult to write a book that contradicts your own beliefs. If the reader agrees with the politics they will enjoy the books all the more. If they don't, they might find them preachy and annoying and stop reading, but that's OK. You can't please everyone.