It's the pattern of similarities, not the mere fact that there are similarities.
Apes are humans are of a similar shape, so having similar genes due to a common designer might seem convincing, but it is insufficient to explain the pattern of similarities. It's not just the functional genes that are similar and form the pattern of a family tree, it's the non functional genes and effectively genetic scars that are also more similar the more closely related.
Why would a common designer make this creature:
have more in common genetically with this creature:
then it does with this creature:
The technology that identifies how closely related species of animals are is the same technology that identifies paternity and criminals by DNA evidence. Do you think that is also just made up?
That is not true.
There are multiple lines of evidence backing up radiometric dating. Is you assertion that the different time scales of decaying elements just happen to line up by coincidence? That time lines of common sediments also happen to line up?
How much of physics and geology do you think is just guesswork or conspiracy? Also, why is it so effective at mining and construction if it isn't true?