To help you understand where most of the guns "banned" today were, I'll give you a timeline and cost estimate for an unlicensed individual to acquire an AR-15 legally in Ontario.
First, you need to spend at least one weekend taking two courses that will enable you to apply for the two firearms licences you need to acquire an AR-15. At the end of each course, you also complete written and practical safe handling tests. Most of these courses are solidly booked, so it's likely you'd need to wait about two months to get in. These courses tend to cost about $250 each (total $500)
Once you have your test results, you can apply for the two licenses required. The Possession and Acquisition licence (PAL) and Restricted Possession and Acquisition Licence (RPAL). The PAL allows you to possess and acquire typical hunting guns and ammunition. The RPAL allows you to possess and acquire restricted firearms like handguns and AR-15s etc. The minimum wait time is three months, usually more. Cost is $80 each (total $160).
In Ontario, you need to be a member of a gun club to acquire restricted firearms. So you need to find a club, join, pay your dues and take another club level safety course. The cheapest club I've joined cost me $200 a year. My current club is about $600. Some clubs require you to buy a share. Shares in the biggest and best club north of Toronto cost $13000 plus a membership fee of about $500. Clubs are also jam packed and it can be difficult to find one taking new members. Let's estimate the time at 3 months and a $350 cost.
Now you can buy your AR-15. Depending on how you purchase it (retail or privately) it can take anywhere from a few days to a few weeks for the legal transfer to complete. The cheapest AR-15s retail anywhere between $600-700 dollars (tthese are the Norinco CQA and the DPMS Panther). You'll need ammunition and probably want an optic as well but we won't consider those costs, although minimum is probably $250 just to get started.
Let's tally up.
Time - minimum 8-9 months
Cost - minimum $1700
Finally, restricted class firearms can only be discharged at an approved firing range. You can only transport them to a range, gun shop or repair facility via a reasonable route from their registered address, trigger locked in a locked container. At home, they must be stored trigger locked in a safe, locking cabinet or case.
People think there is a danger because they are unaware of the facts. The Liberal party will never tell you the facts if they don't support their agenda. They will argue emotively because it suits them.