Come to that
Definition 1 of 2
Pro Tip 1/3Added Emphasis
Use it to stress an additional point, showing your strong agreement or disagreement. 
I doubt they'd enjoy the movie, come to that, nor would the critics.
Pro Tip 2/3Personal Viewpoint
Incorporate it when expressing a personal opinion or preference on what has been discussed. 
The plan seems flawed to the experts, and to me, come to that.
Pro Tip 3/3Conversational Tone
It's commonly used in casual conversation, adding a relaxed feel to your statement. 
I rarely eat out, and I avoid fast food, come to that.
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