I already responded to this- you can buy however much DF you want and can vote freely. I also think you're playing inefficiently if you think you have to force the votes. A big tactic to DV is to determine how the AI will vote, and then vote accordingly. Voting for other civs' interests yields DVP. Your job is to figure out how to do so. And it absolutely doesn't make competitions meaningless (if anything it makes them vital for their DVP and DF without DF costs for you, outside of maybe 30 DF to propose them)
No, it doesn't. There are many ways to get DVP, and most of them don't require that you possess the most DF- you just need to play strategically. I addressed this in a previous post, and you seem to have ignored it. And even if that weren't true, you can buy DF.
Sure, because it's not about grievances, it's about holding a foreign entities capital, which you do not need to do.
And a capital city over the course of the game, as well as an AI without one, is worth significantly more than 1000DF. Including worth more than the investment spent taking it. As to not being penalized, you're not generating additional international grievances, your getting a separate diplomatic penalty for holding a capital.
How are you playing the game? By your own posts, taking one capital is not overwhelming or insurmountable. How is that completely pacifist? You're also absolutely not forced to ignore diplomacy (which would be very dumb, given that it's easy to befriend and ally the AI once you have a comparable empire to theirs or better). Emergencies and competitions are almost all completely unaffected (except the Nobel Peace Prize, but honestly come on), and if you're struggling to get them proposed, again, you simply need to bribe the AI. And the WC is more challenging, but still completely doable if you invest the effort in playing it.
If you don't want to respond and insist on repeating the same comments, that's fine. But I'll leave it here, as I believe I have adequately refuted your hyperbolic claims. The balance is fine, and the change is a good one.