That is what I believe is really behind all their bans. They make it sound noble and naive buy making it as public safety, however they are really afraid of the uprising the Second Amendment was put in place for.
A non responsive and non representative ruler is what our Founding Fathers fought to replace, and they wanted to make sure it never returned.
What some of the founding fathers thought about gun bans.
"The best we can hope for concerning the people at large is that they be properly armed."
-- Alexander Hamilton, The Federalist Papers at 184-188
"[The Constitution preserves] the advantage of being armed which Americans possess over the people of almost every other nation...(where) the governments are afraid to trust the people with arms."
--James Madison, The Federalist Papers, No. 46
"What country can preserve its liberties if its rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms."
-- Thomas Jefferson to William Stephens Smith, 1787. ME 6:373, Papers 12:356
" ... to disarm the people - that was the best and most effectual way to enslave them."
-- George Mason, 3 Elliot, Debates at 380
"The great object is, that every man be armed ... Every one who is able may have a gun."
-- Patrick Henry, Elliot, p.3:386
"I ask, sir, what is the militia? It is the whole people, except for a few public officials."
— George Mason, in Debates in Virginia Convention on Ratification of the Constitution, Elliot, Vol. 3, June 16, 1788