That is of course a highly rational argument.
Thus, you can expect a chorus of accusations that you are an "antifa", a member of the "regressive left", and so on.
Please! Can you stop with the well-poisoning and name calling and have a rational conversation instead!
In the eyes of the regressive left, any merits of a person will be seen through their marxist ideology. Therefore, all Columbus did was sail in a boat and commit genocide. He did nothing good and all evil, and so the case is EASIER to make his arguments should be torn down than it is for Robert E. Lee.
If you think any different you don't know the regressive left as well as you think you do.