DUmmies hate Mothers Day because it reminds them of the trail of mangled, aborted fetuses they've left in their wake.
If it were up to them, every Mothers Day card would read: "Thank you for not aborting me. I know my original mass of non-viable tissue placed you in dire medical peril for nine months, and I made your life a living hell of financial and personal responsibility afterwards. Please forgive me and take solace in the knowledge that at least there'll be one more payer into the Social Security system to help support you in your old age."
Or how about an Abortion Day?:
"On behalf of your aborted child, 'I may have grown up financially disadvantaged, or worse, became a Republican! Thanks!'"
"Glad you didn't have to postpone college for two whole years and ruin your entire life. Happy Abortion Day!"
"The physicians and staff of D&C Abortion Mill thank you for your past patronage. Remember to vacuum your womb regularly for health and fullfilment. Happy Abortion Day!"
"Honey, I can't believe it's been a year since you delivered our bouncing little bundle of fetal parts. These are the memories that bond us. Happy Abortion Day!"