I'll try to tone it down a bit, the name calling was uncalled for.. sorry. I try to carefully craft my statements to say such behavior is foolish or ignorant, and avoid actually directly calling anyone a moron or an idiot.. last few days been pretty rough personally and I've been a bit too abrasive..
the whole image in my head of a meeting full of so called professionals for a so called security company disputing internally about what ports are best to expose cameras to the internet with sent shivers down my spine.. massive disturbance in the force, as if millions of lines of code were suddenly erased without backups.
The thing is what you want is not as simple as you think, yes in nearly all instances its very easy.. but considering all the operating systems, versions of those operating systems, network hardware, configurations, etc there is no one size fits all approach to this.. If your all apple hardware one solution may be better than another solution if your in a all windows, sometimes your router has it built in, sometimes you have to run it your self or install custom firmware on something.. Usually the best thing is to see if anything you already have deployed has a VPN Server already built in and just needing configured, then you use whatever it is.. that could be many types and instructions.
I'll give you my professional advice free, in public, and for the benefit for all.. you can take it or leave it.. but you have to be willing to put some work into it.. Security just does not come naturally, you have to understand how it works so you know how to use it... like a deadbolt, if you dont actually take time to lock the thing it wont do anything at all.. if you come back to me saying I searched and found my router does not have support for XXX what do I do next? you'll find me a willing partner in your objective.. but if you cant be bothered to do some basic research or come back saying its far too difficult without actually knowing anything then your likely to find my help lacking.
I am not trying to simply accomplish getting everyone here on a VPN instead of Port Forwarding, Im trying to make you understand how everything works and why its done this way.. that way you dont forget to lock that deadbolt and do something like leave uPnP enabled so all your cameras are self-exposing.