I would like to apologize in advance if I come across as a bit ignorant as part of my questions below, I suppose it all can be attributed to the fact that I have only just started watching wrestling recently, upon the insistence of my friend. And while I have more or less enjoyed what I have been able to see until now, I did have a couple of queries in relation to rules followed in most WWE matches, that I was hoping the good people of this subreddit, can help me with.

1. From what I have been able to see, wrestlers routinely throw each other into the steel steps outside the ring during matches, which never results in a disqualification, however, when the same steel steps are yanked off their usual spot by a wrestler, to use as a battering ram of sorts to meet oncoming wrestlers with, it automatically results in a disqualification. Can someone explain the logic behind such an event?
2. When a wrestler retrieves a table from somewhere, for instance, and ends up putting their opponent through the table in question, the outcome is a disqualification, but if wrestlers put each other through the announce tables in the sides of the ring, the matches keep on continuing anyway. Why does such a thing happen?
3. Based on what I have seen in other combat sports like boxing and stuff, the rope break rule is usually implemented when it is adjudged that the pugilists contesting the bout are wrangled together in a heap, which renders them unable to proceed further with the contest, which is why pugilists are made to break up upon being locked up in the ropes, so that they can proceed further with their fight. However, in WWE, even when the wrestler is locked up in a submission hold completely, or if the wrestler is basically out of it upon being hit with a finishing move, they can easily escape the predicament they are in, by nonchalantly placing a foot or a finger on the bottom rope. Does this rule make sense in your eyes?
4. Why don't championships change hands by disqualification? Upon researching the subject, I discovered that apparently WWE and UFC (which I watch sometimes) work under the same umbrella, and in UFC a guy called Aljamain Sterling won a title via disqualification, so any clarification on the subject will be welcome.
5. And on a parting note, I also remembered something little, that may not mean much as a question, but certainly something I am happy to accept advice on. Every wrestler has a finishing move, which is touted as the wrestler's most dangerous weapon in their arsenal. But why do the wrestlers being hit with the move, continue kicking out of the move, if the move is indeed a finishing move? I get that wrestling is scripted, but shouldn't the authorities be trying to protect the sanctity of finishing moves, if they are going to be referred as such?

Thanks in advance for taking the time to go through my post, and I hope I have given a few laughs to people that think I am completely dense and stupid when it comes to wrestling haha. Feel free to give me suggestions and advice in relation to how I should proceed consuming wrestling further, peace!