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Who asked Tron about any fork that Witnesses vote for?

Tron doesn't have a say in what Witnesses decide.

Even if they use the stake to change the top 20, big deal, it doesn't change all 100+ witnesses running nodes right as we speak.

If they think that money can buy anything, maybe they are right about that, but money sure as anything can't buy everyone.

That they can stick where the sun doesn't shine. (every pun intended)

Tron DOES have a say.. if they don't like it they will be voted out and replaced

They can't stop a fork.

Literally can not stop a fork from happening.

and in that fork can be all sorts of wonderful little things, like for example:

"all ninja mined tokens = NULLED"

Just saying it as it is.

Wouldn't that be / feel great?

So, only Steem that arose through inflation would exist?

Might wanna think on that a bit. All Steem was originally ninjamined.

Are those 80 mill SP they just acquired enough to dethrone the top 20?

Hell no

We can, Dave.

The difficult part is having people with various skill sets like coding, getting to the exchanges, etc. to keep a forked chain going.

In addition, that also depends on how much of the community would migrate over to Tron.

It's all just code and data. They may be able to raise the necessary workload, but for the cost of tainting their already pretty low reputation further.

Steem doesn't have that great of a rep out there either

Mostly because of Steemit Inc, that problem's solved then ;)
But yes, a chain split carries its own risk, of course.

Steemit has 21% of stake. TRON has super representatives. They dont need our witnesses. Our witnesses get the shaft.