Edit: By “overthrow” I mean an actual attempt to topple the government, not wandering around aimlessly in a building for 4 hours stealing furniture.
If you actually oppose power you would almost certainly be FBI’d long before you could ever get to a position where you could conceivably stage a coup.
Being barred from election is a very quaint punishment for leading a failed coup.
Still, it is not that different from British life peers or Italian senators for life, institutions that are never covered in this way by the media outlets who are now clutching their pearls over Lukashenko.
Life peers have the closest thing to no political power at all. The Lord’s only purpose these days is to delay legislation and force review of bills.