I'm sure someone with much better English skills than me will help you too, but I'll try to make a few comments. Firstly, language analysis isn't the right section to be sharing your personal opinion. This means that you can't mention your opinion on abortions, can't use the word "I" etc. Instead, what you should be doing more is looking at the effect on the readers. So you've identified what arguments he's making, and the way he does them, but what you need to do now is talk about what that will do to the reader. Will they be angry/disgusted/feel sympathy? How will they act as a result of these feelings? So basically try to frame your reactions to the text as reader's response.
Basically you've got the basics there, you just need to make it more sophisticated (say the writer sometimes, instead of just Van Gend all the time), watch your clauses, and just extend all of your points (the hypocrisy idea is unfinished, why will readers see late-term abortions as unnecessary or damaging? Why is he trying to make his opponents look bad?)
Apart from that, just try to work on your fluency, especially in the introduction. Try to incorporate his intended audience in a bit better- look at why he is targeting them maybe.
Good luck!