Staggering revisionism. I'm not sure what you're trying to achieve here?
If Africa had remained untouched, they wouldn't have had their resources and labour stolen by force.
Kenya alone had 7 million acres of their most fertile land seized from them, they had the vote taken off them, they were forced into wage labour and if they resisted they were flogged and executed.
How do you think Britian became so wealthy? The damage of imperialism by European countries was so destructive that Africa countries are still struggling now.
And do we help them now? No, we place trade tariffs on them, but we throw them a bit of aid to make ourselves feel better