When people will vote for a pedophile to avoid putting a checkmark next to a (D), that's when you can give up faith in the average citizen's regard for the details of an election.
So in this case, we were discussing how Republican voters are unafraid to vote for a pedophile because of his political affiliation, bearing in mind that this is the topical issue at hand because voters have been quoted saying they'd "rather vote for a pedophile than a democrat" (unprovided but assumed common knowledge in the context).
The poster then found a single state law (unrelated to federal election context) regarding disease transmission (unrelated to pedophilia or federal election context) being passed by state legislators of the democratic party (impossible moral comparison - passing a law about disease transmission versus being personally accused of pedophilia). The poster sums it up by declaring because of this one action of a state government thus equalizes all parties and is also applicable in this case merely because of the letter next to their names.
The end result is muddied waters, successful redirection, and further division. Are we talking about pedophilia and republican voter stubborness, or are we arguing the pros and cons of changing California state law re: disease control? God only knows.
I'm doing my best to define, recognize, and combat these kinds of troll techniques, and am open to feedback and suggestions. I get it, "never argue with a troll, they will drag you to their level and beat you with experience," and also, there are probably better things I can do with my time than argue on the internet, but I usually just do it in 5-10 minutes spurts while coding anyway, not much else I can do as a quick break.
Regarding decriminalizing child prostitution, the bill removes penalties for the children. Anyone purchasing or attempting to purchase sex from them still face criminal charges. Many places have done the same, but also decriminalize adults who offer sex for money. This is because a very large percentage of people who engage in prostitution are forced or otherwise coerced into it. Decriminalizing their side allows them to more easily seek help while still forbidding paying people for sex.
"Felonious sexual activity" as you refer to the bill to reduce not informing people that you are HIV+ before having sex from a felony to a misdemeanor is certainly controversial, and arguments for and against the change have merit. On the one hand, there are a few people who do it maliciously, but on the other hand, there are people who are inordinately targeted for prosecution under this law (mainly prostitutes). There's also the question as to whether these types of laws continue the stigma around HIV, and what that does to people living with the disease.
So when I analyze your argument, it's extremely weak to claim that people will agree to horrible things to avoid voting for a Republican.