Scrape all youtube comment using Youtube API and python

I'd like to scrape all the comments on some youtube videos using the youtube API, but I'm having trouble exceeding the 100 maxresult. This is my code:

video_response = youtube.commentThreads().list(part='snippet, replies',videoId=video_id, maxResults=100, pageToken=pageToken if pageToken != "" else "").execute()

for item in video_response['items']:

   comment = item['snippet']['topLevelComment']['snippet']['textDisplay']
   date = item['snippet']['topLevelComment']['snippet']['publishedAt']
   count = item['snippet']['totalReplyCount']

   if  count > 0:
       parent_id = item['snippet']['topLevelComment']['id']
       response = youtube.comments().list(part="snippet", parentId=parent_id).execute()

   for x in response['items']:
       print(x['snippet']['textDisplay'])
    
   if "nextPageToken" in video_response:
       pageToken = video_response.get('nextPageToken')

The comments sometimes are over 4k and no metter what I always get only 100 results. What am I doing wrong? Thakn you all