There is a monopoly on how to practice Islam, and that is simply the way of the Sunnah. The Islamic jurists don't disagree on everything -- and even if they follow strict, rich traditions -- no jurist makes willy-nilly personal takes (Islamic law is way more comprehensive and coherent than any other legal system). Nor are they wide-ranging interpretive discrepancies, as you ridiculously make it seem. They differ in minor nuances but not fundamental practices. You're the extremist for invoking such a dramatic word against a reasonable standard statement.
Imagine calling a Muslim an extremist and getting emotional over the rejection of having polytheistic temples in Islamic countries. Are you even a Muslim?