You're suggesting alternate words than the OP is using. I'm here for legitimate discussion so don't take this as bashing, but your wording significantly muddies the waters by adding reserved words like 'action' or 'regular action' without reducing any of the abuse of OP's wording.
In that case OP's wording is significantly more clear.
What I meant is:
Action: dash
Rogue (with rewrite of cunning): dash
Monk (with rewrite of ki): dash
Revised Ranger (with rewrite): dash
From the giantitp thread these kind of repeated dashes coming from Multiclass is one of the main concerns with removing the bonus action. The more common case would be dipping Rogue 2 to get a free Dash/Disengage every turn without the bonus action cost.
TWF is the worst martial fighting style of any of the main supported fighting styles in 5e. My post here shows the damage numbers that show that TWF is doing ~84-89% (depending on class) of the damage expected of it. Often the same damage or less than Sword and Board.
It needs significant help. Removing the bonus action helps significantly for the Ranger, but that's not enough.
Though I caution us delving too deeply into TWF as that can add too many topics to the thread.
I with you I like the bonus action but a few things are bonus action that should not have been that is not an issue with the bonus action itself but flagging certian things as bonus actions that should not have been.
The issue with dual wielding it is simple instead of a bonus action they should have made it just like colossus slayer. When using dual weapons you can make an off hand attack once per turn. I am not sure if that fixes all the issues but it fixes several issue with bonus actions hurting classes with bonus actions like the ranger who rely on hunters mark or rogues who need to disengage etc.