Wikipedia is not the Achilles heel of free access to information. The Achilles heel are the sources: libraries, websites.
Consider donating to the internet archive instead or as well. If the sources are poisoned, Wikipedia just repeats bullshit. It's secondary literature.
I know people who are left leaning democrats and they're for gun control. But gun control doesn't solve the problem entirely.
The problem is the entire culture around guns and toxic 'me and my gun and my truck' self sufficiency culture in the US and the lack of a social net.