I think a priest can cautiously approach popular and controversial media stories from the pulpit. He may also use the pulpit to further a social message with due discretion.
However, a priest should never use the liturgy to do either. Ever.
The liturgy is centered on Christ and his offering of himself. The vestments a priest wears are to promote that message. And that message alone.
And now, I present, the hoodie-Mass:
And the explanation:
But to be fair, this is from Trinity Wall Street Episcopal Church. But our guys shouldn't do this either.