The statistics probably show that per hour flown, light twins have a higher accident rate than comparable singles but that does not make them any less safe. The cause is not necessarily the aircraft!
When operating at low altitudes, 2000 ft and below, an engine failure in a single means you have to land somewhere very soon, in a twin its no problem.
The take off case in a light twin is the critical phase of flight but the probability of a failure at that point is very low. If you have planned your departure you should know what isn't possible and plan to land straight ahead if it goes wrong, you could be in exactly the same situation with a single.
Provided you handle a twin correctly, it is as safe as any single and when one quits, I'd say a lot safer as you can keep flying. I'll take the twin any day. Twice the chance of a failure, but half the chance of it being a probem.