There's a YouTuber called LangFocus who--surprise!--looks at different languages. He's Canadian, so it's not surprising that he's looked at various aspects of English. One of the videos deals with whether English is truly a Germanic language or not.
There's a lot of evidence to cite if your answer is that it is not, but maybe not enough evidence.
A lot of the "Germanic" words are not from the Angles, Saxons, and Jutes who invaded Britain in the (IIRC) 5th century, but rather from later waves of Norse and Danes who invaded and semi-settled large parts of eastern and southeastern England.
And then the Normans who brought their language into England starting in 1066 weren't exactly speaking French either. But, of course, there has been later borrowings of more modern French words.