This isn't an attack on anything. Many states levy taxes on the residences of clerics, as they levy taxes on residences of non-clerics, and have done so for decades.
I didn't know that, I thought all church property was tax-exempt. Is it just the property that the church itself stands on that is exempt? What about church run schools?
It really varies from state to state. In my state, the only property that is exempt for a religious reason is the actual "house of worship" itself. Other types of properties that are typically owned by churches, such as cemeteries, schools, and public charities (soup kitchen, food bank, etc.) are also exempt, but through their own exemption, and not because they are church-owned. In other words, these types of properties would be tax exempt whether owned by a religious group or not. Examples of properties that are subject to tax, even though they are church-owned are clerical residences and land used for agriculture.