This really ain’t much different than kosher slaughtering of animals.
The major difference is the lack of rabbinic supervision of the slaughtering process.
So why the fuss?
(Of course, ‘kosher’ came long before ‘halal’. Just one more thing the d@$n Muslims copied/stole from the Jews.)
If it were simply a question of accommodating Muslims by allowing the availability of their meats (such as kosher meats are available when appropriate in this country) it would be a different matter. Then it would be offering an alternative, not forcing a norm.