A libertarian should recognize the importance of the 2nd Amendment.
As for abortion and "queers", I can see your point with the latter, but not the former. In the minds of most social conservatives, personhood begins prior to birth, so abortion isn't an issue of personal choice as much as it is the taking of another person's life. From that point of view, I think government intrusion is absolutely legitimate, because it is saving another person's life. Now, with homosexual issues, I absolutely agree. That is far more of an example of one side or the other trying to force its social views on the other via the rule of law. I don't care for either position and think those issues should be up to the individual states and to individuals themselves. Homosexuality should not be a political issue.