Twitter is not 'the mood of the nation'. You are not representative of 'the mood of the nation'. In fact, you're an outlier.
>The idea behind increasing taxes on the wealthy is to build a better society for everyone - including the wealthy!
You're trying to pull the same fast one as OP. Wealth tax is not the same as increasing taxes on the wealthy. You can make an argument that taxes should be increased and at the same time see that the wealth tax is a terrible way to do it.
> Why should wealth tax not be a part of modern economy?
Because it's a bad tax. It doesn't work. It doesn't bring revenue you think it does. It's expensive to administer and enforce. And it has many bad unintended consequences.