A wife does not allow her husband to kiss her because he eats Rainbow chickens.

Answer

Yes, the wife may refuse to kiss her husband who eats carrion chickens. In fact, she may even deny him conjugal rights as long as he consumes carrion and haraam. How is it possible for a pious woman to kiss the filthy mouth of a man who devours rot and najaasat? However, if she cooks the carrion for him, then she has no valid grounds for refusing because in that case she is on par with him in his evil.