do you oppose ANY new control measures?

No, as I'd explicitly stated in the post you're replying to, I believe that the priorities that Biden outlined are a good start.

do you think there are TOO MANY limits on the RKBA now?

No. I think that some current/proposed limitations are misplaced, and some needed limitations are overlooked. We worry a lot about "assault weapons" when they account for something like 4% of gun violence, and not enough about handguns, which account for the vast majority of firearm deaths. But generally, no I don't think there are too many limits right now.

do you think that nothing can be done about the 30,000 firearm deaths each year?

I think that reduced availability of guns would likely accomplish that. As about half of gun deaths are from suicides, and studies have shown that having a gun present in a home increases the likelihood of a suicide occurring, I think that an overall reduction in the number of homes with firearms easily accessible would at the very least help with that figure. Measures such as gun buybacks help with that. Add secure storage requirements and you start to reduce the problem of theft and teenage (and preteen) kids getting ahold of firearms unsupervised.

that high-capacity magazines are super cool and constitutionally protected?

I think they're super-cool, but I'd support limitations on them. It's one of the few parts of the "assault weapons" ban that went after something besides a cosmetic feature. In addition, California's ban on detachable magazines is another example of a way of putting an upper cap on how many rounds per minute someone can fire.

That last part might put me at odds with some of the posters here that you think are anti-all-gun-control, but I think you'll find that the majority of what I just posted is digestible by enough people that you could start getting laws passed a lot faster than if you start trying to legislate flash hiders and barrel shrouds, and get bogged down in that mess.