Well ... in some respects.
Let's be clear – Ehrman is not disputing the existence of Jesus – and he would toss your arguments on that score out for being the nonsense they are.
What Ehrman has done, and carved himself a niche by so doing, is set about trying to dismantle the foundations of early Christian orthodoxy, and thus orthodoxy per se, by an intense critique of the texts, to cast doubt on their veracity, and suggest that the early Church was a hot bed of anti-Semitism and hard at work forging documents and editing Scripture.
Here, while his audience laps up his books, scholars largely dismiss him as someone resting on dubious arguments and overtly polemical statements.
What is most evident is Ehrman’s evangelism has been replaced by skepticism, and although a PhD scholar, he evidences a lack of objectivity and a degree of invincibility with regard to his own conclusions.
Skeptics will find his works affirm their own prejudices and, thus satisfied, see no reason to look further. A more critical review of his conclusion, however, lead to an entirely different place. Ehrman exaggerates for hyperbolic effect, and plays somewhat fast and loose with his sources ... in short, he sells books to a hungry public, but his peers, while admiring his style and bravado, tend to dismiss his conclusions as too partisan and too often just unfounded.