Are these claims about cannabis factually true?

If you get something that is laced you may have an issue, but I have never had any issues with good old fashioned cannabis. There are so many miss-conceptions about this drug it is not even funny. As for it being the gateway drug, the first thing that I ever tried was tobacco and I know people that have tried way harder drugs and have NEVER touched cannabis, so explain that one will you. For those who think it is the worst thing that you can do, try it you may just figure out all of the lies that have been told to you. It is not addictive, no one has ever killed for it, few accidents are to blame on someone "just smoking cannabis". Do the research and go beyond the government test and studies, look at Universities and Medical Units that have done testing, this way they should be non-bias test. It is funny how we believe and distrust our government at the same time. You will figure it out