Abortion, Homosexual Marriage, these are manufactured controversy. They were created so that that poor masses can be convinced to vote for them.

How are they "manufactured controversy?" Do you think that there is a secret universal agreement on these issues? Seems unlikely.

Among the Religious Right in the US, it's very largely manufactured. Meaning: groups of people very deliberately chose two key issues (abortion and gay marriage) and created opposition movements where there weren't any before. A number of authors trace this, but you could try Randall Balmer for starters.

It's a mostly tacit agreement between a relatively small group of career rabble rousers and carpet-bagging politicians, building 'issues' to root their respective industries in.