It's very easy to look back 100 years and say "the governments actions helped rich people! Capitalism!!!!" But it's really not so simple.

If you had a angry man blocking your driveway and refusing to leave, you would call the police. If there were hundreds, you would like to be able to call the military.

I'm no lover of government, and certainly it was fumbling and violent when performing it's duty (as always). That said, the purpose of breaking a strike is to allow people who want to work (strike breakers) to do business with people who want to employ them.

A core function of government is to facilitate mutual transactions. There's nothing inherently immoral about that.