please rewatch from s1 - you missed a lotOk let's see...
Varis has ALWAYS served the Realm and has been setting up pieces for 20+ years..
So the very same pieces he has 'put in play'... he has also worked to completely undermine & kill... in order to stay alive himself.
Don't get me wrong, I like Varys.
But I can also admit that for every 2 steps Varys takes forward... he takes at least 1 step backward at the same time. And he's been seriously LUCKY that all his 'best intentions' & 'carefully planned schemes' have not backfired badly on him, over the years.
How?
Well, if you wanted Dany to be Queen from the get go ... because you think she is the 'best person' for the job... you do not send REAL ASSASSINS to kill her... if you 'serve the realm' and want 'what is best for the people'.
You send fake assassins.
Or bumbling oafs.
Or you do nothing at all... but tell everyone the opposite.
Dany was almost killed TWICE.Literally.
She was saved by Barriston Selmy from a little girl who gave her a deadly scorpion on a pier.
And she was saved by Jorah Mormon from a wine merchant who tried to poison her.
So Varys almost sabotaged his own plans.
He GOT LUCKY Dany had someone looking out for her, both times.
If they had succeeded in killing her... Varys would probably be groveling at Cersei's feet as we speak, or doing her bidding... just like he was doing for all the other rulers before her.
And btw, if Dany 'started to go mad'.... Varys would be the very first person in her current entourage who would get killed.Trust.
She has no 'love' for Varys.
He's with her because... he's Tyrion's wingman.
(Regardless if he was actually the person to convince Tyrion's to 'meet her' in the first place.)
Plus she already thinks he's a backstabbing turncoat... compared to EVERYONE ELSE in her posse.
So if shit ever hits the fan... the line to 'get beheaded' starts behind Varys.Not someone else. Please believe.
Varis only sent one assassin under Robert's orders - and that was when Viceron(sic) was alive and still considered the principle to lead an invasion by Varis and his allies
The faceless assassin was sent by the old masters to kill Danny - not Varis - that assassination attempt was after she had made them enemies in 1 or 2 cities
As for the rest of your post - lets say that Varis doesn't remain 1 step ahead of everyone else gets himself executed or an accident kills him -
he is replaceable and not alone... he is only one member of the conspiracy that kept Danny and brother alive long enough to be able to invade Westeros