No no no. Don’t say millionaire. Stick with “rich”. It’s a malleable adjective that can be changed to suit your purpose. Sure, there are other factors that can be used to stifle people’s speech or any of their silly supposed “rights”, but why waste one by using a somewhat precise definition? You’re doing a great job of ignoring the speech and attacking the speaker but you’re being too specific. Religion, race, economic status, sexual preference, and many other factors of choice can be twisted enough to suit just about any purpose. Don’t define them precisely because it limits your options. Remember the strategic plan of Pol Pot.
1. Kill the rich
2. ??????
3. Profit.
Now remove the “rich” and substitute any of the other traits and you’re right there with some of the thought leaders in all of human history.