He is making sweeping generalizations to get his point across.

他正在进行全盘概括，好让人理解他的观点。

《柯林斯英汉双解大词典》

I realize that I've made some sweeping generalizations in this column, and you may disagree with me.

我发觉我这篇专栏文章，有的地方太过笼统了，有些一概而论之嫌，您可能并不认同。

youdao

As a result, many erroneous and sweeping generalizations about Buddhism have been made, such as that it is' negative ', 'world -denying', 'pessimistic', and so forth.

结果，关于佛教，我们作出的很多总括性的归纳都是错误的，例如说它“消极”、“拒世”、“悲观”等等。

youdao

Making sweeping generalizations about an entire population based on a limited sample is fallacy.

FORBES: Election Over, Liberals Call For Entitlement Cuts

Science uses inductive reasoning to make sweeping generalizations about the universe from a few data points called experiments.

FORBES: The Confession of a Serial Stereotyper: How to Stereotype Your Way to Success

Making sweeping generalizations about educated working women will not help anyone, least of all those stuck in bad marriages.

FORBES: Magazine Article