Is divorce a sensible solution for my case ?

[Painful]

There are few things about my wife that has caused so much damage in our marriage and our kids.
1) Stubborn, 2) self-confining 3) Phobia of everything. 4) Can only visualize negative aspects towards things in life. I would not describe her as a bad person but being a housewife, her reluctance to participate with the outside world has separated her from reality and lives in her little delusion world that everything is harmful and filthy. The best thing to do is to stay home watching TV. This has conditioned my two young kids into “watchers” instead of “doers”. Going to the park and play with other kids is almost a luxury because my wife thinks it is dirty and filthy in the park ; you cannot go to the beach because sand will mess up the interior of the car ; you cannot go to the swimming pool because there are germs in it; you cannot keep or touch a puppy because they are filthy (now my kids run away from puppies rather than petting them), my 12 years old daughter cannot walk to school in the morning with other kids because she may get abducted…………….It is amazing she can only see the negative aspects in life. The world to my kids has been restricted to within 3 km from my house. She will not participate in any family activity if she doesn’t like it and of course there are not too many things that she likes or knows. She only hangs around with a couple of friends with the liked mind. She finds yelling and threatening the kids is more “effective” than providing reasoning and guiding. There has been almost no support or encouragement in my career. I have to struggle all my ways through as a lone ranger. I work long hours and still have to do and pay all the house bills, go to the parents conference in school, go through all the books with my kids to help them out with their homework, look after my 80 year old mom, deal with all the external affairs. I am not trying to glorify myself and put her down as I made mistakes and need my life partner to back me up when I am down. Again she is not a bad person and she’s quite intelligent. She is just painfully stubborn and self confining that makes all sensible communication very difficult. To keep the fire burning in the house and ensure they get a good life, I have not taken any time off from my work from my work (which could have been another reason for miscommunication) for the past five years. I need my wife to be understanding of what I am doing and be supportive, not scorning and discredit of my achievements. My career is not going anywhere and the family atmosphere is so tense that the kids are frightened to do anything “wrong” to displease their mom. Now the situation has gotten so bad, I am at a dilemma on separation but my kids are all my life. I feel like trapped in a sinking boat in open water, should I go seek some help and come back to save my family or staying with them ?