NO, not all alcoholics are abusive towards others; verbally, emotionally or otherwise.
Abuse isn't dependent upon substances or drinking. Abusive people are just as prevalent in the non-drinking population. There is NEVER an excuse to abuse people. I don't care if he is prince charming sober and attila the hun drinking, he is a person that drinks and abuses others.
If someone is abusive while drunk, it may make someone think the two go hand in hand but they really don't. The fact is, if you are walking on eggshells and praying that he won't drink, that is STILL part of the abuse until he gets help for the drinking. Even if he treats you like a goddess sober.