Champion Bot iwould work like that with Proletariat.
All Proletariats are Proletariat, and if Proletariat gains that boost then all Proletariat gain that boost.
Champion Bot gives Proletariat 2 extra attack dice to all Proletariat's attacks, any Proletariat making an attack will benefit.
This works because the bonus is granted to the character, not to the attack or the target making the attack.
On the other hand: What if Foresight is on Visionary, and she has line of sight on a Proletariat, and a Proletariat she can't see makes an attack?
Both are still Proletariat, but they are not the same target, because while they are the same character and share the same health pool, they can be hit seperately by the same AoE attack. Unlike Omnitron, whose hexes are all one target.
If Proletariat hits his To be continued phase with 2 of his proletariats adjacent to Ra's Tornado Proletariat will face two hazard attacks.
So Foresight would require the Proletariat target making the dice roll to be in line of sight, because it specifies target, not character.
I would think Twist the Ether and Wrest the Mind, since they specifies Character not target, would work like Champion Bot.
An even rougher question is the term allies and Proletariat.
Abilities that affect allies should affect allied Targets, otherwise Stealth Bot and Proletariat would be ridiculous and non-sensical. (since one Porletariat gaining cover would cause all Proletariat to gain cover.
But that means motivational charge and Inspiring Presence + Proletariat is awesome. Which I think Presence is already confirmed to be sick with Proletariat.
(sick meaning you get the effect for each proletariat target in line of sight, so up to 6 +1 attack tokens from presence, and up to 4 hp regained from charge)