I won't address the abortion issue because, as you recognize, we have a difference in opinion that fundamentally does not allow us to have a discussion where we can persuade one another.
As for gay marriage, really, I don't think the government should be involved in marriage at all. I know that is quite Libertarian of me, but I believe that should be with respect to only the church and let the church make the rules to govern that institution.
As for the malpractice suits, you are just wrong. Most states have insurance funds for medical malpractice and charge doctors pro rata by specialty. Unlike Auto Insurance where you have to pay higher premiums for getting into an accident where it is your fault, malpractice insurance does not really increase when you make a mistake and are at fault. The good doctors are penalized for the mistakes of bad doctors.
In states where there are caps on non-economic damages, insurance rates for medical malpractice still continue to increase. This is an insurance crisis.
As for frivolous lawsuits, statistically there are very few. With respect to medical malpractice, there are virtually none because of the high cost a lawyer must undertake to prosecute them--many times spending upwards of 100k for experts, etc. The days of filing a lawsuit for medical malpractice for a quick settlement have been gone for years.