Abortion: No change. I think the way things are now in respect to abortion is appropriate.
Marriage: I would allow gays to get married by the state. Churches can perform wedding ceremonies for gays if they choose to bt would not be mandated to.
Drugs: No change
Recreational Drugs: No change
The intelligence community: Oversight and cooperation needs to be improved, but I don't think consolidation is the answer.
Social Security: Has to be made solvent for the long run. That is going to require some painful things like raising the qualifying age, freezing benefit levels, and possibly more.
The Department of Defense: Base consolidation is a good money saver down the road, but very expensive in he short run(it takes about 10 years of a base being closed to cover the cost of closing the base). I think it is a worthwhile investment to close some bases, but readiness has to be the key factor in the decision. The Pentagon needs to be tasked with finding ways to cut costs without reducing readiness as much as possible, which is something that is doable.
Social programs: I think most of the programs you mentioned are needed, but I think all need to be reduced to an extent, mostly by streamlining processes, working to reduce fraud, and working to make them more efficient.
College: I don't think we can afford to make college free, except for vets which I strongly support, and an increase in merit type scholarships. Free college is not going to happen I don't think, but helping ensure motivated people can attend college is great, especially by joining the military as a route to free college.
Give massive incentive for companies to do business in America: I think there are real limits to the effectiveness of this. Labor elsewhere is just incredibly cheaper, as are some of the more important regulations lesser. I think in conjunction with education and maybe more merit scholarships and improvement to our education system we have to make the US desirable by a better workforce than anywhere else.
Give government consolidated business and agriculture loans for $50,000+ to any business or farmer with a solid plan: I don't think this will work well, and would be painfully expensive. What we need to drive business and increase employment is more demand, not more businesses.
Reinvest in transit and rail system heavily: I can agree with this, but I don't see us being able to have rail systems used like in Europe or Japan.
Allow immigrants in by completing a simple test to be American citizens: While I think we can allow more (legal) immigration, I don't think making it that easy is a good idea. Once an immigrant is a citizen, I think they should be treated just like a citizen, not as some separate category.
Make free healthcare: Not going to happen, and I don't think with things as they are it's the best way to handle healthcare. What I would do is put 5 democrats and 5 republicans who are knowledgeable on healthcare in a panel and task them to come up with plans to control health care spending. They would present their plans each December, and the next January a new set of 5 repubs and 5 democrats is empaneled to do the same.