> though I do hope that your principled opposition to state debanking also extends to muslims).

Of course. With the restriction that Muslims in non-Muslim countries are not entitled to Islamic banking if no bank provides it, as well as non-Muslims in Muslim countries are not entitled to non-Islamic banking.

Back to Sellner. If he is a far-right terrorist, arrest him for God's sake. Don't leave it to banks to emulate justice in their own internal processes.