Also here is more I got to say
America is a much larger country than any European nation ever. And we have a lot of wilderness, open space, and many different types of populations. This is why, for instance, it is almost impossible for anyone to buy a legal gun in NY City. Probably because proximity and population make guns more dangerous in an inner city such as the Big Apple.
America is a nation that is 40 times the size of Great Britain, and has not only a Federal Constitution, but 50 different state constitutions. People, government, laws, and logistics are different here. Americans have been heavily armed with all kinds of heavy duty, hardcore weapons for almost 250 years. It is only in the recent decades we have had serious, widespread problems like the one in Florida. So categorically assuming its the guns themselves that are the problem is myopic.
The fact remains that the fundamental cultural differences between America and the other western nations are (a) Americans have an irrational fear/distrust of their own government and (b) desire for, familiarity with, and protectiveness of, guns. These are obviously obstacles to changing gun laws. My contention is that they are the ONLY obstacles to changing gun laws, and that there is nothing sacred or immutable about them.