I can assure you that Salafis are very friendly believe in the oneness, tawheed; no shirk or biddah.
Following the quran and the sunnah.
Salafi is the path of the first three generations of Muslims,known as "salaf",as the Prophet (swallallaahu alaihi wassallam) said:
"The best of mankind is my generation,then those who came after them,then those who came after them"(Saheeh Bukhari and Saheeh Muslim)
So the "salaf" are the pious earliest generations of Muslims. This title refers to the Companions of the Prophet (swallallaahu alaihi wassallam),their followers and those who followed them. their importance was emphasised by the Proiphet (swallallaahu alaihi wassallam) in his saying:
"There shall not cease to remain a group from my nation victorious upon the Truth,they are unharmed by those who abandon them and those who oppose them. They will remain in that state until they fight the False messiah,the Dajjaal"(Saheeh Muslim)
The Prophet (swallallaahu alaihi wassallam) clarified that this group would be his companions (may Allaah be pleased with them) and those who followed them when he (swallallaahu alaihi wassallam) said:
"And this nation of Muslims will divide into 73 sects,all of them will go to the Fire except one."
and when asked which is the saved sect, he replied:
"That which I and my Companions are upon today."(Authentic hadeeth in Tirmizi)
So a "Salafi",therefore is any individual who keenly and sincerely follows the way of the Salaf to the best of his ability.