Mind you, none of the people who are being labelled as a 'wahhabi' has ever acknowledged themselves as one, because there is no such thing. This is a label created by someone and/or applied by the ignorant others on any person who doesn't agree with them in a matter of fiqh opinion.
Here is a video by Bro Yusuf Estes giving a short and clear explanation of the man who was being labelled as the leader of the so-called new or askewed belief, and where the name 'Wahhabi' came from.
I believe, none of the people who are labelling other people 'wahhabis', know the history of the label. If they know, they would find it silly to use it.
Muhammad Ibn Abdul Wahhab, was just a scholar during HIS time and in HIS area who spoke and explained against the shirk practices of the people during his time. We have our own ulama's in our time and area, speaking against shirk practices and we don't call our selves by the ulama's name or calling ourselves as his follower. We are just all MUSLIMS - trying our best to do the right thing and for the sake of Allah SWT alone and nobody else. So don't label Muslims other than Muslims and considering that there are sects and groups within Islam. Don't be like the people that Allah has warned us about in the Qur'an.
فَأَقِمْ وَجْهَكَ لِلدِّينِ حَنِيفًا فِطْرَةَ اللَّهِ الَّتِي فَطَرَ النَّاسَ عَلَيْهَا لَا تَبْدِيلَ لِخَلْقِ اللَّهِ ذَلِكَ الدِّينُ الْقَيِّمُ وَلَكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ
مُنِيبِينَ إِلَيْهِ وَاتَّقُوهُ وَأَقِيمُوا الصَّلَاةَ وَلَا تَكُونُوا مِنَ الْمُشْرِكِينَ
مِنَ الَّذِينَ فَرَّقُوا دِينَهُمْ وَكَانُوا شِيَعًا كُلُّ حِزْبٍ بِمَا لَدَيْهِمْ فَرِحُونَ
So set thou thy face steadily and truly to the Faith: (establish) Allah's handiwork according to the pattern on which He has made mankind: no change (let there be) in the work (wrought) by Allah; that is the standard Religion, but most among mankind understand not.
Turn ye back in repentance to Him, and fear Him: establish regular prayers, and be not ye among those who join gods with Allah,-
Those who split up their Religion, and become (mere) Sects,- each party rejoicing in that which is with itself!
Al-Qur'an, Ar-Rum 30:30-32 (translation by Yusuf Ali)
May Allah make us all among the people on the straight Path. Aamiin.