If Cure is generating too much enmity for you to hold hate, it's on your end. Update your Gear, work on your skill rotation or whatever. I've tanked everything from Lvl 1-50 so far w/o any enmity issues at all, especially not aganist healers.
I'm mostly healing on my SCH right now for Endgame stuff and I never grab hate from any Tank that I know is a decent tank...so yeah...the fault is on your end and you might wanna work on that.