It depends how the wealth tax is implemented. European wealth taxes were primarily on capital like stocks, which are extremely easy to move, even easier than income.
A wealth tax on land (an LVT) is literally impossible to avoid however since you can't move the land.
Regarding your comment about approval, isn't that the intended outcome? You elect the candidate that the most people approve of, regardless of whether or not there are other "stronger" candidates. The population would be better served than if one of the "strong" left or right candidates were elected.
You could also just not vote for any other candidates if you don't think they'd do a good job. In your example, the left or the right could just not vote for the "meh" candidate if they truly don't believe they would be a good person to lead, and if they do vote for them, then they should be happy at the outcome regardless.
It's not a property tax (which taxes the building and the land), it's only a land value tax. So if you have a $300,000 house, it's not going to tax 2.5% of the $300,000 house, just the $50,000 worth of land it sits on.