I completely disagree. The ostensible dilemna of whether or not a church dabbling into politics should remain tax exempt is a problem created by the unspoken assertion that the State has pre-eminence over the Church. Thus, tax-exempt status is something that must be applied for to - or withheld by - the State, in an act asserting the State's unspoken doctrine of pre-eminence.
Further, the State's tax rate on citizens is actually higher than the Old Testament's requirement of a tithe (10%) to be paid to God via the Church. And the State requires it's money to be collected first, in the form of withholding. Pre-eminence again.
The State won't stop muzzling the churches in the United States, until the State recognizes the pre-eminence of God over the State first, and the co-sovereignty of the Church over it's citizens in addition to the State's.