Help me out -- looking for quotes of center-lefties condemning antifa . .

Sorry - don't have quotes.

Hating hatred is not enough.

To 'defend antifas unreservedly' would be to ignore too much that is destructive and unhelpful in anyone's struggle for justice.

maybe that's just me

Hating Nazis and white supremacists isn't enough.

On edit: My 'they' refers specifically to today's antifa, not the less-dodgy anti-fascists of history.

and a head of the United Church of Christ who both were present at the rally both said Antifa literally saved their lives from white supremacist marchers who had begun to attack the clergy who were present.

Not a chance I am throwing Antifa under the bus right now.

Bully for them. Me too. That doesn't forgive their riotous behavior all the other times.

"The center" and saying that centrists sound like Trunp.
It's basically revenge of the horseshoe theory. Probably pissed Trump co-opted the schtick about jobs ending racism. That's gotta sting.

should be our default state!

Than some punk trying to brain another punk with a bicycle lock because he's wearing a red hat.

You certainly make many unsupported allegations.

Excerpt:

The violent clashes between a pro-Trump demonstration and counterprotesters on April 15 turned Berkeley, Calif., into a battleground of activists on the right and left. On a day when dozens were arrested and injured — one man with a weaponized U-lock stood out.

Many threw punches. He drew blood.

One attack was captured in a profanity-filled video later posted to YouTube. The bike lock flashes through the air and smashes into a man’s head with a thunk.

https://www.washingtonpost.com/news/the-intersect/wp/2017/05/29/a-man-clobbered-trump-supporters-with-a-bike-lock-the-internet-went-looking-for-him/?utm_term=.db17acbb78bf

With the mostly-student opponents of the Yiannopolous visit several days earlier largely sitting this one out.