Is my car safe to drive without the ABS working?

It’s a little less safe, but I don’t think you’re doing anything irresponsible here. You’ll have to remember to pump the brakes if needed. Does it snow a lot where you live? If so, you should be a little more conservative about venturing out when it’s bad out.

If you have an ABS discount on your insurance, you should call them to remove it, not only because it’s the honest thing to do but also because a claim could be denied due to insurance fraud.