What do you think of me telling my mother she is weird?
why do you think she's weird?
She is very hard to handle.
You should accept your mom however she is. It's not right to tell her that she's weird.
If she really is weird then she needs to know it.
It is not your job to judge people and tell them things when it will hurt their feelings. This is inconsiderate. Take your mother's feelings into consideration here.