Well, prior to the marriage he was a five time World Champion, multiple time IC Champion, Tag Team Champion, King of the Ring, Royal Rumble winner, and so much other accolades. Triple H was already one of the biggest names in the WWE even before Stephanie McMahon. People just find that as an excuse to hate him when he actually accomplished a lot during his past without Stephanie. This is the part I respect the most as well as his hard work and accolades without Stephanie McMahon.
Triple H was an amazing superstar before he even married Stephanie McMahon. I mean this guy had everything you could want, championships, talent, mic skill, wrestling ability, charisma, in-ring psychology, etc, everything. Triple H was a great wrestler a long time ago because he actually tried in the ring and ever since he married Stephanie he's been getting lazier in the ring and he thinks he can get away with everything because he knows he's secure. He had the fan base in the palm of his hand, a top heel of the attitude era and one of the biggest faces when he turned face.
I don't see what he really gained in his career except a ton of championships and championship opportunities. He got his major accomplishments before he met Stephanie. Besides, championships don't really mean much in the WWE nowadays with people losing the title everywhere. I still respect him for his past accomplishments without Stephanie and I'll continue to respect that. Some of the other wrestling fans wouldn't mind his marriage with Stephanie if he just started trying in the ring again and to me that's the biggest factor showing effort in the ring.
Things have been going downhill for Triple H in terms of respect and popularity from fans. Some factors I can't blame people for disliking him but some other reasons sound ridiculous like some people say Triple H sucks in everything just because of his marriage. If he just started showing his wrestling ability in the ring he would gain a lot more respect from the fans. I will always respect Triple H for what he did in the past and his passion for the WWE.