Depending on how we handle each others differences is what determines wether we are strong or week. If we respect and accept our differences we are stronger as a whole. However if we are not accepting and disrespectful towards those who have differences we are not so much weak as we are weak minded. When others are not welcoming we become divided and we would no longer work well together as a whole therefor making us weak. This is why it is important to always have a growth mindset so that you are open to change and are more accepting of the people around you.
Hope this was helpful ;)