Why did the first integrated circuit look like it was in a house fire?
Your circuit needs semiconductors (transistors and diodes) to do some useful function like a logic gate. An integrated circuit is where all the transistors are build together on the same silicone wafer instead of separate components soldered together on a breadboard.
Because the first of anything is usually pretty mediocre compared to refined consumer products.
>"why is the model-t worse than a modern car?"
>"why was the first mobile phone so basic?"
Why do you think?
>An integrated circuit is where all the transistors are built together on the same silicon wafer
And not just transistors or even active components.
Passive components, like capacitors and resistors, as well as gyrators to simulate inductances.