Unity2D Parent of prefab is instantiating, but not moving.

Hi. I want to make some spikes as obstacles in my game. I wanted to give feedback based on where the bullet hits the spike. Since spike has a slanted surface, i couldnt use box colliders to check for triggers. So I split the spike into 4 objects, from top to bottom and added box colliders to each object. And then added them into a parent object called Spike. I made prefabs for all the 4 spike objects and the parent Spike object too. My problem is, I can instantiate the Parent Spike, but I couldnt move it. I added a rigidbody2D to it and still cant move it. In the Inspector window, the transform position value is changing, but nothing is changing in the scene/game views.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class SpikeManager : MonoBehaviour
 {
     public Transform spikeTopPoint;
     public Transform spikeBottomPoint;
     public GameObject spikePrefab;
 
     private bool canMakeSpike = false;
     public float spikeDelay = 1f;
     public float spikeSpeed = 30f;
 
     void Start()
     {
         canMakeSpike = true;
     }
 
     void Update()
     {
         if (canMakeSpike)
         {
             StartCoroutine(Spike());
         }
     }
 
     public IEnumerator Spike()
     {
         //Instantiate your projectile
         MakeSpike();
         canMakeSpike = false;
         //wait for some time
         yield return new WaitForSeconds(spikeDelay);
         canMakeSpike = true;
     }
     
     void MakeSpike()
     {
         //Transform spikePoint = spikeBottomPoint.transform;
         
         GameObject spikeInstance = Instantiate(spikePrefab, spikeBottomPoint.position, spikeBottomPoint.rotation);
         //spikeInstance.GetComponent<Rigidbody2D>().AddForce(-transform.right * spikeSpeed, ForceMode2D.Impulse);
         //spikeInstance.GetComponent<Rigidbody2D>().velocity = Vector2.left * spikeSpeed * Time.deltaTime;
         //spikeInstance.transform.Translate(-transform.right * spikeSpeed * Time.deltaTime);
         //spikeInstance.transform.position -= transform.right * spikeSpeed * Time.deltaTime;
     }
 }

This is the code I'm using to instantiate the spike and to move it. As you can see, I tried different ways. The individual child spike parts are working fine. They give collider feedback and even move if i substitute them instead of the parent Spike.

If this is not solved, instead of box collider, I might try an edge collider and edit the edge to the slanted spike shape. But I wonder if I can check for the bounds of it.